The first game in The Sims series is still definitely worth playing, even with a fifth installment supposedly on the way. Its graphics have a unique old-school charm, especially the beautifully detailed 2D sprites used for furniture and decorations. Plus, it has the best soundtrack in the entire series.
The Sims has always reflected the fashion and atmosphere of its time, and as such, this game is a real nostalgia trip. If it ever came to GOG, it would be great to see improvements for high-resolution support and maybe a fix for the long load times when all expansion packs are installed.